Petroglyph Ponderer T-Shirts

Is (petroglyph symbol) one word or two?

'Houston, I'm prepared to land...'

'Seriously, in this day and age, how can people still believe in this nonsense that we have evolved from microbes...?'

"What's your favorite planet, Randy?" "There is only one answer, little buddy. There is only one planet full of lush, green forests and beautiful, windswept ocean vista... all of which are natural aphrodisiacs that inspire lovers, philosophers and poets." "You know, Pandora is not a real planet." "I'm talking about Earth, you... Do you ever go outside?"

Pre-Historic Gentleman's Duel

NASA, 'I thought I smelled oxygen!'

Oog is backing up all our files.

'Congratulations, you've got the job. Unfortunately though, you'll be constantly late, and we'll fire you in two months.'

"I'll have dessert first."

'I say we try it.'

"It is just as the Oracle foretold!"

'Just one God? - But won't he be outnumbered?'

Fortune teller sees impending doom

"Apparently, over two-thirds of the Earth's surface is covered with water!"

'The hardest part of being a street crazy is picking each day's sign.'

"Just great. These humans bring us back from extinction just in time for another global climate catastrophe."

'You'll be going on a long journey this Christmas.'

'He's always looking for an argument!'

Planetary Science. What do we call the study of gas giants in space? Gastronomy.

Fracking Zone - Be prepared for anything.

The End is Near.

'So there's global warming. What possible harm could it do?'

A self-filling prophecy.

"You're right! It is much easier to explain it this way!"

Another archaeological site where some believe ancients had help from aliens.

Jupiter, Saturn, Uranus, Neptune, Earth, Venus, Mars … Mercury … Um, Pluto? Charon? No, Pluto … or Eris? Ugh …

A psychic predicts the discovery of gluten.

"Just a tad to the left."

'Your North Pole is wobbling - you should see a spin doctor.'

Where Meteorites Come From. Ahh-choo!

'Dang, that reminds me...I've gotta get back and post an entry on my blog.'

'And that's your idea of a desk calendar...'

'Knock the corners off that mate - and you've got the wheel.'

"I see a vague figure of someone groping...groping...groping..Yes, yes, it's coming in more clearly now! It seems to be—yes, it is a man! The man has a briefcase! And some papers! The man is an economist!"

'Come back in a couple of days. Maybe something will have opened up.'